annas-archive.gd
Book-search and preservation index for finding books, papers, metadata, and library records.
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annas-archive.pk
Book-search and preservation index for finding books, papers, metadata, and library records.
The Australian Bureau of Meteorology data catalogue holds metadata records describing data available from the Bureau. It offers discovery and a search with an option to clear all. Pages link to information about the catalogue and about data access and licenses.
geochem.nrcan.gc.ca
The Canadian Database of Geochemical Surveys is the public interface to a Geological Survey of Canada database that catalogues regional geochemical surveys across Canada. It provides high-level metadata for catalogued surveys and links to spreadsheets and KML maps for standardised raw data, with data presented through an index map query, periodic table search and index tables.
correspsearch.net
correspSearch is a web service for searching scholarly editions of letters, including by sender, recipient, location, date, and full text. It aggregates files in the Correspondence Metadata Interchange Format and offers filter options, visualizations such as bar charts, maps, and networks, an API, and the csLink widget for linking letters across editions.
DML-CZ is the Czech Digital Mathematics Library, offering open access to metadata and full text of mathematical journals, proceedings and books published throughout history in the Czech lands. It provides search and browsing by collections, titles, authors and MSC.
github.com
LinkedIn's generalized metadata search & discovery tool.
digitaladarchive.com
Digital Ad Archive is an AI-indexed archive of vintage print advertising spanning the 1920s to the present. Visitors can search the collection by brand, decade and style. The site states that the archive contains more than 52,000 vintage print advertisements with AI-powered metadata.
dlg.usg.edu
The Digital Library of Georgia is a GALILEO initiative based at the University of Georgia Libraries. It collaborates with Georgia libraries, archives, museums and cultural institutions to provide access to resources on Georgia history, culture and life. Visitors can search metadata and full text with phrase, boolean and exclusion operators; truncation and wildcards are not supported.
ethos.bl.uk
EThOS (E-Theses Online Service) is an open access discovery platform for UK doctoral theses, managed by the British Library. It holds metadata for over 650,000 theses from UK universities from the 1700s onwards. Some records link to the thesis in the university repository, where a download may be possible. The platform was restored and is being updated, with an initial content backlog.
edal.ipk-gatersleben.de
e!DAL is a free software infrastructure for maintaining and publishing in-house research data. It offers a submission tool with an embedded review process and ELIXIR AAI login, supporting DOI-citable datasets. It includes index-based metadata search, version tracking, an embedded HTTP(S) server, and a Java-compatible API, and is designed to support JSON-LD, OAI-PMH and ORCID for data harvesting and linkage.
geochron.org
Geochron is a database system for capturing data and metadata documenting geochronologic age estimation, enabling future reuse, recalculation and integration. Data can be ingested from data reduction programs used in geochronology and thermochronology communities, which are adapted to upload standardized data to the database. A REST search service accepts GET variables such as geographic bounds, ages, analysis method, material, rock type and laboratory.
idr.openmicroscopy.org
The Image Data Resource is a public repository of reference image datasets from published scientific studies. It enables access, search and analysis of highly annotated datasets, with author-supplied metadata browsable and available through a JSON API. It uses OME-Zarr and OMERO tools to read, manage and serve data.
kinsources.net
Kinsources is a collaborative web platform for sharing, archiving, analysing and comparing kinship data for scientific use. Users can browse and search the repository by combined data and metadata criteria, and datasets can be listed by topic areas such as region or marriage rates. The site reports figures including 127 datasets, 798,519 individuals and 266,785 unions.
kondata.uni-konstanz.de
KonDATA is the research data repository of the University of Konstanz, operated by its Communication, Information and Media Center (KIM). It lets researchers publish research data with lasting visibility and citability. Published data receive a Digital Object Identifier, and metadata are transferred via standardized interfaces to RADAR and other meta search engines. The KIM performs formal curation of published data.
dbarchive.biosciencedbc.jp
The Life Science Database Archive maintains and stores datasets generated by life scientists in Japan for the long term. It lets users search datasets by metadata in a unified format and access and download them under clear terms of use. It also provides datasets in forms suited to different users in public and private institutions.
metadatacatalogue.lifewatch.eu
Search agriculture, forestry and veterinary medicine data collections and supporting aggregated data from ESP.
melinda.kansalliskirjasto.fi
National metadata repository of Finland.
scidbase.nipr.ac.jp
The National Institute of Polar Research Science Database is a metadata portal organizing polar science data into categories including space and upper atmospheric sciences, meteorology and glaciology, geoscience, and bioscience. It also covers governmental institutions, project monitoring, IPY, Arctic, and Umitakamaru. The database provides search, DOI attribution, and a data policy, and is licensed under Creative Commons Attribution 3.0 Unported.
nvs.landcareresearch.co.nz
The New Zealand National Vegetation Survey Databank is a repository for vegetation survey data. Users can search for and download datasets through metadata, species and maps, view scientific names and NVS species code lists, and access the NVS Express tools and developer resources. Datasets may be open access or require the owner's permission before download.
neuromorpho.org
NeuroMorpho.Org is a curated inventory of digitally reconstructed neurons and glia linked to peer-reviewed publications. It collects contributions from laboratories worldwide and is updated as new morphological reconstructions are published and shared. The site offers browse, search, literature, metadata and API access to the collection.
nomad-lab.eu
NOMAD is a free and open-source service for managing, sharing and publishing materials science data. It processes uploaded files to extract structured data and metadata, supports over 60 formats, and provides search, preview and download functions. All functionality is accessible via APIs, and published data is available under a CC-BY-4.0 license. NOMAD Oasis offers local installation with access control for research groups.
nwtdiscoveryportal.enr.gov.nt.ca
The NWT Discovery Portal is administered by the NWT Cumulative Impact Monitoring Program, and serves as a comprehensive online source for environmental monitoring knowledge in the Northwest Territories. It functions as a search tool for environmental data, metadata and reports, and allows users to upload and share research and monitoring information.
openknowledgemaps.org
Open Knowledge Maps is a nonprofit, open science AI-based search engine for scientific knowledge. It provides visual overviews of research topics, helps users find relevant research outputs and identify key concepts. The platform searches over 400 million outputs from more than 11,000 sources, with results based solely on underlying metadata to avoid hallucinations.